||09-03-2012 01:18 PM
Moved Sink and now won't drain. Venting Issue?
I moved my sink to the corner and now water slowly collects and then drains very slowly. I thought it was the disposer, but that works fine. So, I dismantled EVERY PVC pipe to the basement and kept testing each part by adding on, letting the faucet run, and the water empty into a trash can. Each time it worked as a pipe section was added. It stopped working once I put on the last pipe in and had a closed system. BINGO - the problem is a venting one, right? So, I added an automatic air vent, but that did not solve the problem. The water still slowly collects until it backs up in the sink, then slowly drains.
Attached is a schematic. I know I have a lot of 90 deg angles to the sewer, but the AAV and continuous waste vent should handle these, right? :huh: